Project faces on a plane defined by coefficients
      Syntax
         
         projectFacesOnCoeffPlane(faces, coordSystem, coeffPlane)
      
      Parameters
         
         
            - faces : Faces to project - [1..N] Face
            
- coordSystem : Coordinates system of planar surface - [1..1] CoordSys
            
- coeffPlane : A/B/C/D - [4..4] Double